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Arroyo Grande, CA, United States of America

John B Witmer

Average Co-Inventor Count = 2.40

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 3

John B WitmerHoy Ayers Buell (2 patents)John B WitmerDave Halley (1 patent)John B WitmerJohn B Witmer (2 patents)Hoy Ayers BuellHoy Ayers Buell (3 patents)Dave HalleyDave Halley (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Greenheart Farms, Inc. (2 from 6 patents)


2 patents:

1. 10647531 - Independently automated loading system for unitized loads into a covered multi-level transporter

2. 9661800 - Independently automated mechanical transplanter

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as of
12/19/2025
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